#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main() {
    int n = 0;
    int i, j, k;
    while ((scanf("%d", &n)) != EOF)
    {
        for (i = 0; i <= n; i++)
        {
            for (j = 0; j < n - i; j++)
            {
                printf("  ");
            }
            for (k = 0; k <= i; k++)
            {
                printf("*");
            }
            printf("\n");
        }
        for (i = 0; i < n; i++)
        {
            for (j = 0; j <= i; j++)
            {
                printf("  ");
            }
            for (k = 0; k < n - i; k++)
            {
                printf("*");
            }
            printf("\n");
        }
    }
    return 0;
}